EP 0033510 A3 19830601 - SPEECH SYNTHESIS SYSTEM AND METHOD FOR EXCITING SPEECH SYNTHESIS FILTER THEREOF
Title (en)
SPEECH SYNTHESIS SYSTEM AND METHOD FOR EXCITING SPEECH SYNTHESIS FILTER THEREOF
Publication
Application
Priority
- US 11813880 A 19800204
- US 11813980 A 19800204
- US 11815580 A 19800204
- US 11815680 A 19800204
- US 11825580 A 19800204
- US 11836680 A 19800204
- US 11836780 A 19800204
Abstract (en)
[origin: EP0162479A2] A speech synthesis system comprising voiced/unvoiced excitation means for generating voiced/unvoiced excitation signals. Filter means are provided for converting excitation signals into digital signals representative of human speech. Converter means are coupled to said filter means for converting said digital signals representative of human speech into analog signals. Audio means are coupled to said converter means for converting said analog signals into audible sound. External excitation input means are provided for receiving externally generated excitation signals, and control means are operably coupled to said voiced/unvoiced excitation means and said external excitation input means for selectively coupling either said voiced/unvoiced excitation means or said external excitation input means to said filter means in response to a control signal. The speech synthesis system may be constructed by employing metal-insulator-semiconductor technology so as to provide circuits capatable of low voltage operation.
IPC 1-7
IPC 8 full level
G10L 13/00 (2006.01); G09B 19/06 (2006.01); G10L 13/04 (2013.01)
CPC (source: EP)
G09B 19/06 (2013.01); G10L 13/04 (2013.01)
Citation (search report)
- GB 2014765 A 19790830 - CARLSON C W, et al
- DE 2917161 A1 19791129 - TEXAS INSTRUMENTS INC
- DE 2804721 A1 19781019 - SHARP KK
- JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, vol.57, Supplement 1, 1975 NEW YORK (US) R. VISWANATHAN et al.: "Optimal linear interpolation in linear predictive vocoders", page S34, no.R7
- ELECTRONICS LETTERS, vol.10, no. 7, April 4, 1974 STEVENAGE (GB) J.N. HOLMES: "Variable-frame-rate coding scheme for speech-analysis/synthesis systems", pages 101,102 * Figure 1 *
- IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol.CE-25, no.2, May 1979 NEW YORK (US) L. BRANTINGHAM: "Single Chip LPC Speech Synthesizer and Companion 131K Bit ROM", pages 193-197 * Page 196, left-hand column, lines 28-52 *
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0162479 A2 19851127; EP 0162479 A3 19860115; EP 0162479 B1 19900321; DE 3177166 D1 19900426; EP 0033510 A2 19810812; EP 0033510 A3 19830601; EP 0164677 A1 19851218; EP 0164677 B1 19891018; JP H033240 B2 19910118; JP S6438800 A 19890209
DOCDB simple family (application)
EP 85106853 A 19810127; DE 3177166 T 19810127; EP 81100571 A 19810127; EP 85106852 A 19810127; JP 2363888 A 19880203